There are two points over \(x=\infty \)  on \(X\)  which are denoted by \(\infty _\pm \) . The solution corresponding to \(X\)  is well known. It is constructed by the method of Baker–Akhiezer function of Krichever [1]}. To construct the Baker–Akhiezer function we need to specify a base point \(p_\infty \) , a local coordinate \(z\)  around \(p_\infty \)  and a general divisor of degree \(g\) . We take \(p_\infty =\infty _+\) , \(z=x^{-1}\) . For each \(0\le m_0\le g\)  we consider a general divisor of the form
\(D_g=p_1+\cdots +p_{m_0}+(g-m_0)\infty _+, \qquad p_j\ne \infty _+ \qquad \forall \, j.\) 
